21609938

素因数分解:

$2^1\times 7^1\times {\mathrm{1181}}^1\times {\mathrm{1307}}^1$

素因数の和:2497

約数の個数: 16

約数和(自身を含む): 37105344

約数和(自身を除く): 15495406

約数列:

[1, 2, 7, 14, 1181, 1307, 2362, 2614, 8267, 9149, 16534, 18298, 1543567, 3087134, 10804969, 21609938]

約数ペア:

[(1, 21609938), (2, 10804969), (7, 3087134), (14, 1543567), (1181, 18298), (1307, 16534), (2362, 9149), (2614, 8267)]